console.log(typeof 5); // number
console.log(typeof '5'); // string
console.log(typeof true); // boolean
console.log(typeof null);// object
console.log(typeof undefined); // undefined
let p = Symbol('5');
console.log(typeof Symbol('5'));// symbol
console.log(typeof 5n);// bigint
console.log(new Object());// {}
console.log(typeof new Function());// function
console.log(typeof new Array()); // object
